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electronic circuit board pcb for rc models that distribute power to the electronics on board.
It will embed 3 phase generator circuit (rectifier and regulator ) that will provide energy to the outputs but will charges the lipo bateries and balance the cell volltages.
Dual Battery redundancy circuit.
RGB leds indicating the voltage levels of the Batteries and the Generator output.
The out...

I'm looking for someone who can help me turn my phone into a Bluetooth Low Energy broadcaster. I'd like to build a quick way for me to be able to broadcast my business information to those in proximity to me.
Once we are able to set this up I'd like to be able to make this script available to affiliates who can use their phone to broadcast my services to others. I'd like to...

I am working on a project involving BLE that connects to an Android application, but the BLE device disconnects from the Android device after around 1 second. It appears to be an issue with the BLE code. Please respond if you know how to resolve this issue.

I need to create a custom pcb, according to my needs. I need to build gerber, bom, pcb layout, 3d model ... everything that is needed to produce a prototype with the design provided. The project will be based on rock64, where I will need to include some components and make some modifications. You will need to exclude other components so that the board is customized.

we are looking for expert guy from china, he will design a printed circuit board (PCB) to do work like usb hub with external power.
in the market there are alot of this type of device but we need some special requirements:
General Requirements:
1. the pcb will be connected to a battery 5000mAh
2. the pcb will be connected to mobile using usb type c
3. the pcb will be connected to Flash Dis...

We need to hire a programmer to help us with a small project to develop a software for a microcontroller to comunicate with a Raspberry Pi. The Microcontroller shall performe some simple action to activate a Solenoid, led and a sensor.
*** Scope overview ***
1. C/C++ programming for a STM32F030F4 Microcontroller (Slave).
2. Python programming for a Raspberry Pi 3 Model B (Master).
*** Ap...

Develop a chip that integrates GPS GSM and Bluetooth modules in a small device able to help locate lost keys. The desired dimensions are 60x60x15mm, the system should also incorporate LEDs, a buzzer and a powerful enough battery for the system to last at least 1-2 days before recharging.

I have a small PCB (less than 10 components). [Gerber and related files].
There is issue with two components in this. holes are not aligned. I need to get it corrected and if not possible redesign the PCB.

I need to build a bunch of cables that will have anywhere between 1 and 10 conductors so I need a simple way to verify the conductors on both ends of the cable. I'm looking for someone who can build me a simple continuity tester circuit with a transmitter and receiver to verify the cable and connectors. This doesn't need to be incredibly complicated, just a couple of LED's to veri...

The application has to be able to communicate with the tracker, with the GPS and Bluetooth modules installed and give the end user an idea of where the keys are located. The tracker will also have LEDs and a buzzer so the user has to be able to trigger them if the trackers is still connected via Bluetooth.